RFR: 8361638: java.lang.classfile.CodeBuilder.CatchBuilder should not throw IllegalArgumentException for representable exception handlers [v3]

[Chen Liang]

> CatchBuilder has a simple check for duplicate catch types. However, this check is never comprehensive as it still allows subtypes covered by supertypes, and covering that would be too costly; in addition, the "illegal" duplicate catch types are still valid `class` files. We should remove this duplicate catch type check, and compensate with documentation on the effects of duplicate types.

Chen Liang has updated the pull request incrementally with one additional commit since the last revision:

  Wrong ref

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26372/files
  - new: https://git.openjdk.org/jdk/pull/26372/files/11d269c6..00aca654

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26372&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26372&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26372.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26372/head:pull/26372

PR: https://git.openjdk.org/jdk/pull/26372